Combining a compact, stylish design with outstanding coverage and simple setup, the LA-140 IR Radiator/Emitter from Listen Technologies is an expandable option for any infrared assistive listening application.
Two LA-140 units can be mounted together horizontally or vertically, doubling the power of your system without taking up an excessive amount of space. Additionally, two units can be powered by a single LT-82 transmitter or optional power supply with standard CAT-5 cable, making setup and installation simple.
Each unit includes hardware for mounting on wall, ceiling, desk, mic stand or tripod, making the LA-140 an incredibly versatile choice for nearly any IR assistive listening system.
With a compact design and availability in either white (-WH) or grey (-GY), the LA-140 IR Radiator/Emitter from Listen Technologies is a discreet and dependable choice.
| User Controls | Termination Switch, Delay Compensation Switch, Indicator LEDs on/off, Compatibility Switch |
| Red LED | Indicates power is present. |
| Yellow LED | Indicates no connection to transmitter or radiator. |
| Green LED | Indicates carrier and power are present and radiator is emitting IR signal. |
| Frequency Range | 1 MHz – 5 MHz |
| Input/s | BNC Connection. -25 dBm to -5 dBm input nominal |
| Output/s | BNC Connection. -15 dBu nominal |
| Coverage Area | 3,716 m² (40,000 ft.²) maximum coverage per radiator when used with LR-4200 / LR-5200 Receivers |
| Power Supply Input | RJ-45 connector. 30 VDC, powered from transmitter via CAT-5 cable or optional LA-205 power supply. |
| Power Supply Output | RJ-45 connector. 30 VDC, powers up to one additional radiator. (Maximum two radiators powered from each LT-82 transmitter or LA-205 power supply) |
| Emitter Power | 3 W |
| Cable Length | 250 ft. with (1) LT-82 and (2) LA-140 or 700 ft. with (1) LT-82 and (1) LA-140. |
| Width | 8.00 in. (203 mm) |
| Height | 5.50 in. (140 mm) |
| Depth | 2.60 in. (66 mm) |
| Color | LA-140-GY (Grey), LA-140-WH (White) |
| Shipping Weight | 6.0 lbs. (2.70 kg) |
| Mounting | Radiator can be mounted on a wall, on a ceiling, in a corner, on a desk, on a mic stand or on a tripod. Wall box mounting plate fits a standard single gang electrical box. |
| Weight | 2.1 lbs. (0.95 kg) |
| Weight (Loaded) | 2.4 lbs. (1.09 kg) |
| Temperature – Operation | -14 °F (-10 °C) to +104 °F (40 °C) |
| Temperature – Storage | -4 °F (-20 °C) to +122 °F (50 °C) |
| Relative Humidity | 0 to 95% relative humidity, non-condensing |
| Standards | FCC Part 15, Industry Canada, CE, RoHS |
Up to two LA-140 radiators can be powered by one LT-82. If additional power is required, order an additional power supply.
